Matter and Change

Amount of matter that an object contains

• Mass
• Volume
• Density
• Weight

Homogeneous mixture

• Solution
• Compound
• Pure Substance
• Substance

The simplest form of matter with a unique set of properties

• Element
• Compound
• Mixture
• Solution

A part of a sample with uniform composition and properties

• Phase
• Homogeneous Mixture
• Heterogenous Mixture
• Compound

Tags

NGSS.MS-PS1-4

Alters a substance without changing its composition

• Physical Change
• Chemical Change
• Chemical Reaction
• Physical Reaction

Matter with a definite shape and volume

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Contains two or more elements chemically combined in a fixed position

• Mixture
• Compound
• Solution
• Physical Change

Tags

NGSS.MS-PS1-1

A gas is a form of matter that

• has a definite volume
• is generally a liquid or solid at room temperature
• takes the shape and volume of its container
• is difficult to compress

Homogeneous mixtures

• are always liquids
• consists of two or more phases
• have a composition that is fixed
• are known as solutions

A compound

• is a substance
• has a composition that varies
• can be physically separated into its elements
• has properties similar to those of its elements